Their former friends and often family members tend to be liberal, as the liberals see themselves as defenders of LGBT people. But is that really true?

I'm coming to suspect that whatever Ism (Liberalism, Libertarianism, Anarchism, Conservatism) is in growth mode, is the one that's most welcoming and tolerant at any given time. That Ism begins to attract fresh interest from displaced moderates who feel their former group — like the liberal left at present, which has wielded power for decades and is now acting utterly senile — no longer represents (or has outright betrayed) them and their interests. Respecting your elders is good, but there comes a time to leave their basement, too. For good.